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powerpc: Remove get_irq_desc()

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get_irq_desc() is a powerpc-specific version of irq_to_desc(). That
is reason enough to remove it, but it also doesn't know about sparse
irq_desc support which irq_to_desc() does (when we enable it).

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman
2009-10-13 19:44:51 +00:00
committed by Benjamin Herrenschmidt
parent 59e3f83702
commit 6cff46f4bc
25 changed files with 62 additions and 60 deletions
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28
arch/powerpc/kernel/irq.c
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@ -190,7 +190,7 @@ int show_interrupts(struct seq_file *p, void *v)
}
if (i < NR_IRQS) {
desc = get_irq_desc(i);
desc = irq_to_desc(i);
spin_lock_irqsave(&desc->lock, flags);
action = desc->action;
if (!action || !action->handler)
@ -230,23 +230,25 @@ skip:
#ifdef CONFIG_HOTPLUG_CPU
void fixup_irqs(cpumask_t map)
{
struct irq_desc *desc;
unsigned int irq;
static int warned;
for_each_irq(irq) {
cpumask_t mask;
if (irq_desc[irq].status & IRQ_PER_CPU)
desc = irq_to_desc(irq);
if (desc && desc->status & IRQ_PER_CPU)
continue;
cpumask_and(&mask, irq_desc[irq].affinity, &map);
cpumask_and(&mask, desc->affinity, &map);
if (any_online_cpu(mask) == NR_CPUS) {
printk("Breaking affinity for irq %i\n", irq);
mask = map;
}
if (irq_desc[irq].chip->set_affinity)
irq_desc[irq].chip->set_affinity(irq, &mask);
else if (irq_desc[irq].action && !(warned++))
if (desc->chip->set_affinity)
desc->chip->set_affinity(irq, &mask);
else if (desc->action && !(warned++))
printk("Cannot set affinity for irq %i\n", irq);
}
@ -273,7 +275,7 @@ static inline void handle_one_irq(unsigned int irq)
return;
}
desc = irq_desc + irq;
desc = irq_to_desc(irq);
saved_sp_limit = current->thread.ksp_limit;
irqtp->task = curtp->task;
@ -535,7 +537,7 @@ struct irq_host *irq_alloc_host(struct device_node *of_node,
smp_wmb();
/* Clear norequest flags */
get_irq_desc(i)->status &= ~IRQ_NOREQUEST;
irq_to_desc(i)->status &= ~IRQ_NOREQUEST;
/* Legacy flags are left to default at this point,
* one can then use irq_create_mapping() to
@ -602,7 +604,7 @@ static int irq_setup_virq(struct irq_host *host, unsigned int virq,
irq_hw_number_t hwirq)
{
/* Clear IRQ_NOREQUEST flag */
get_irq_desc(virq)->status &= ~IRQ_NOREQUEST;
irq_to_desc(virq)->status &= ~IRQ_NOREQUEST;
/* map it */
smp_wmb();
@ -732,7 +734,7 @@ unsigned int irq_create_of_mapping(struct device_node *controller,
/* Set type if specified and different than the current one */
if (type != IRQ_TYPE_NONE &&
type != (get_irq_desc(virq)->status & IRQF_TRIGGER_MASK))
type != (irq_to_desc(virq)->status & IRQF_TRIGGER_MASK))
set_irq_type(virq, type);
return virq;
}
@ -804,7 +806,7 @@ void irq_dispose_mapping(unsigned int virq)
irq_map[virq].hwirq = host->inval_irq;
/* Set some flags */
get_irq_desc(virq)->status |= IRQ_NOREQUEST;
irq_to_desc(virq)->status |= IRQ_NOREQUEST;
/* Free it */
irq_free_virt(virq, 1);
@ -1001,7 +1003,7 @@ void irq_early_init(void)
unsigned int i;
for (i = 0; i < NR_IRQS; i++)
get_irq_desc(i)->status |= IRQ_NOREQUEST;
irq_to_desc(i)->status |= IRQ_NOREQUEST;
}
/* We need to create the radix trees late */
@ -1064,7 +1066,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
"chip name", "host name");
for (i = 1; i < NR_IRQS; i++) {
desc = get_irq_desc(i);
desc = irq_to_desc(i);
spin_lock_irqsave(&desc->lock, flags);
if (desc->action && desc->action->handler) {